{
  "area": {
    "code": "10000",
    "name": "群馬県",
    "slug": "gunma"
  },
  "structure": {
    "id": "wood",
    "name": "木造"
  },
  "segment": {
    "segment": "rental",
    "building_type": "detached",
    "label": "貸家・一戸建"
  },
  "unit": {
    "price_per_tsubo": "万円/坪",
    "price_per_sqm": "円/㎡",
    "cost": "万円",
    "floor": "㎡",
    "yoy": "%"
  },
  "formula": "price_per_tsubo = cost_total / floor_total * 3.30579",
  "formula_real": "price_per_tsubo_real = price_per_tsubo / deflator * 100 (MLIT construction cost deflator for housing of the same structure, FY2020 = 100)",
  "source": "https://www.e-stat.go.jp/stat-search/files?page=1&toukei=00600120&tstat=000001016966&cycle=8",
  "last_verified_at": "2026-10-13T11:03:37.415Z",
  "provisional": {
    "fiscal_year": 2026,
    "through_month": "2026-08",
    "months": 5,
    "units": 50,
    "price_per_tsubo": 75.48630408315098,
    "prev_price_per_tsubo": 77.66428453879942,
    "change_vs_prev": -2.8043526938825636,
    "note": "Sum of monthly preliminary releases from April; replaced by the annual report."
  },
  "years": [
    {
      "fiscal_year": 2012,
      "units": 118,
      "floor_total": 7746,
      "cost_total": 103564,
      "price_per_tsubo": 44.198403764523626,
      "price_per_sqm": 133699.97418022205,
      "cost_per_unit": 877.6610169491526,
      "floor_per_unit": 65.64406779661017,
      "yoy": null,
      "ratio_national": 0.935578909375423,
      "rank_in_national": 30,
      "is_spliced": false,
      "price_per_tsubo_real": 50.28259813938979,
      "deflator": 87.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2013,
      "units": 164,
      "floor_total": 11200,
      "cost_total": 171963,
      "price_per_tsubo": 50.756568372321425,
      "price_per_sqm": 153538.39285714287,
      "cost_per_unit": 1048.5548780487804,
      "floor_per_unit": 68.29268292682927,
      "yoy": 14.838012347092477,
      "ratio_national": 1.0191077460480136,
      "rank_in_national": 18,
      "is_spliced": false,
      "price_per_tsubo_real": 55.9609353608836,
      "deflator": 90.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2014,
      "units": 151,
      "floor_total": 12319,
      "cost_total": 197025,
      "price_per_tsubo": 52.87144043753551,
      "price_per_sqm": 159935.8714181346,
      "cost_per_unit": 1304.8013245033112,
      "floor_per_unit": 81.58278145695364,
      "yoy": 4.166696317411733,
      "ratio_national": 0.9932166502678476,
      "rank_in_national": 18,
      "is_spliced": false,
      "price_per_tsubo_real": 56.54699512035884,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2015,
      "units": 167,
      "floor_total": 12750,
      "cost_total": 203213,
      "price_per_tsubo": 52.688588491764705,
      "price_per_sqm": 159382.74509803922,
      "cost_per_unit": 1216.8443113772455,
      "floor_per_unit": 76.34730538922156,
      "yoy": -0.34584256501737354,
      "ratio_national": 0.9691735141683375,
      "rank_in_national": 15,
      "is_spliced": false,
      "price_per_tsubo_real": 56.35143154199434,
      "deflator": 93.5,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2016,
      "units": 187,
      "floor_total": 14291,
      "cost_total": 207767,
      "price_per_tsubo": 48.0606025421594,
      "price_per_sqm": 145383.10824994752,
      "cost_per_unit": 1111.0534759358288,
      "floor_per_unit": 76.42245989304813,
      "yoy": -8.78365900868394,
      "ratio_national": 0.8863187922780513,
      "rank_in_national": 33,
      "is_spliced": false,
      "price_per_tsubo_real": 51.18275031113887,
      "deflator": 93.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2017,
      "units": 172,
      "floor_total": 12590,
      "cost_total": 190241,
      "price_per_tsubo": 49.952088593328035,
      "price_per_sqm": 151104.84511517078,
      "cost_per_unit": 1106.0523255813953,
      "floor_per_unit": 73.19767441860465,
      "yoy": 3.935627002406794,
      "ratio_national": 0.919833826405541,
      "rank_in_national": 30,
      "is_spliced": false,
      "price_per_tsubo_real": 52.41562286813015,
      "deflator": 95.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2018,
      "units": 165,
      "floor_total": 12669,
      "cost_total": 212759,
      "price_per_tsubo": 55.516344984608104,
      "price_per_sqm": 167936.69587181308,
      "cost_per_unit": 1289.448484848485,
      "floor_per_unit": 76.78181818181818,
      "yoy": 11.139186664605782,
      "ratio_national": 1.0409831761770045,
      "rank_in_national": 16,
      "is_spliced": false,
      "price_per_tsubo_real": 56.70719610276619,
      "deflator": 97.9,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2019,
      "units": 174,
      "floor_total": 12719,
      "cost_total": 204538,
      "price_per_tsubo": 53.16138650994575,
      "price_per_sqm": 160812.95699347433,
      "cost_per_unit": 1175.5057471264367,
      "floor_per_unit": 73.09770114942529,
      "yoy": -4.241919159691198,
      "ratio_national": 0.9845985290081397,
      "rank_in_national": 24,
      "is_spliced": false,
      "price_per_tsubo_real": 53.10827823171403,
      "deflator": 100.1,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2020,
      "units": 110,
      "floor_total": 8218,
      "cost_total": 137741,
      "price_per_tsubo": 55.4079849586274,
      "price_per_sqm": 167608.90727670965,
      "cost_per_unit": 1252.1909090909091,
      "floor_per_unit": 74.7090909090909,
      "yoy": 4.225996717112235,
      "ratio_national": 1.0039241726844375,
      "rank_in_national": 22,
      "is_spliced": false,
      "price_per_tsubo_real": 55.407984958627395,
      "deflator": 100,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2021,
      "units": 85,
      "floor_total": 7695,
      "cost_total": 134756,
      "price_per_tsubo": 57.891492818713445,
      "price_per_sqm": 175121.50747238466,
      "cost_per_unit": 1585.3647058823528,
      "floor_per_unit": 90.52941176470588,
      "yoy": 4.4822201383798,
      "ratio_national": 1.0457529117571551,
      "rank_in_national": 13,
      "is_spliced": false,
      "price_per_tsubo_real": 52.48548759629506,
      "deflator": 110.3,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2022,
      "units": 111,
      "floor_total": 8979,
      "cost_total": 154408,
      "price_per_tsubo": 56.8482483929168,
      "price_per_sqm": 171965.69773916918,
      "cost_per_unit": 1391.063063063063,
      "floor_per_unit": 80.89189189189189,
      "yoy": -1.802068620105468,
      "ratio_national": 0.9707135750526625,
      "rank_in_national": 28,
      "is_spliced": false,
      "price_per_tsubo_real": 48.71315200764079,
      "deflator": 116.7,
      "deflator_provisional": false
    },
    {
      "fiscal_year": 2023,
      "units": 126,
      "floor_total": 10314,
      "cost_total": 233556,
      "price_per_tsubo": 74.85816261780104,
      "price_per_sqm": 226445.6079115765,
      "cost_per_unit": 1853.6190476190477,
      "floor_per_unit": 81.85714285714286,
      "yoy": 31.680684513629174,
      "ratio_national": 1.0774266854776413,
      "rank_in_national": 9,
      "is_spliced": false,
      "price_per_tsubo_real": 65.20745872630754,
      "deflator": 114.8,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2024,
      "units": 93,
      "floor_total": 7594,
      "cost_total": 162860,
      "price_per_tsubo": 70.89557010797998,
      "price_per_sqm": 214458.78324993415,
      "cost_per_unit": 1751.1827956989248,
      "floor_per_unit": 81.65591397849462,
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      "ratio_national": 0.9868688424567013,
      "rank_in_national": 25,
      "is_spliced": true,
      "price_per_tsubo_real": 59.67640581479796,
      "deflator": 118.8,
      "deflator_provisional": true
    },
    {
      "fiscal_year": 2025,
      "units": 95,
      "floor_total": 7405,
      "cost_total": 167788,
      "price_per_tsubo": 74.90504963133019,
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      "deflator": 122.3,
      "deflator_provisional": true
    }
  ]
}